Improvement in grain-conveyers



Q clotted filtrate;

812M chilies.

Letters Patent No. 97,070, dated November 23, 1869.

IMPROVEMENT IN GRAIN-CONVBYER$ The Schedule referred to in these Letters Patent and 'making part of the same.

ing is a full, clear, and exact. description of the coustruction and operation o t' the same, reference being bad to the annexed drawings.

Figure 1 is a side elevation, with the unloadingapparatus, ii". 3, and the brushingapparatus, fig. 5, attached.

Figure 2 is an end view of the same. Figure 3 is a. side view of the unh111dbig-apparatus. Figure 4 is an eml view of the same.

Figure 5 is a side view of the bruslling-apparatus in position on fig. l.

Figure 6 is an end view of the same in position on fig. 2.

Figure 7 is a top view of one of the hows or stretcher-s.

Figure 8 is a side view of the same, with section enlarged, showing a lip or projection on the end.

Figures 5) and 10 are top and edge views of one of the hinged bases of the hows.

Like letters in all the lignres indicate the same parts.

The nature of my invention mainly consists in construcling and combining, with the usual canvas grain- C()ll\'t Yl'i a carriage provided with adjustable arms supportiug pulleys, with a semicircular face open-ding beneath theu mersection of the conveycr, for the purpose of unloading the same at any point between the two ends.

Also, in combining with convert-13a carriage provided with routing brushesoperating above the upper section of the com-ever, and immediately over the unloading app iratus, for the pnri'msc of removing any grain that, may adhere to the canvas when dischargiug.

Also, in constructing the heirs or stretcher with a small projection on each end, and with hinged bases, and attaching the same toth'c upper surlacesot' the belts, instead of the under surfaces, as is now the case.

Toenable othersslcillrd in the art to make and use my invention, 1 will proceed to describe its construe tion and operation.

I use the ordinary conveyor now in use, constructed by attaching a strip of -auras, or other tlex'ible material, to the upper suriiices and inner edges of two parallel belts, and placing the same over four suitable pulleys attached to two horizontal shafts, two pulleys on each shaft.

The shalts are parallel with each other, and placed at such a distance apnrtas will Le equal to the intended length oi the conveyor.

The pulleys are set on the shafts at such a distance apart as will allow the canvas, when the belts are placed upon thcnn'to be suspended loosely between the belts, forming a bag or apron, which receives the grain in a continuous stream, carries it to the extremeend, and discharges it only at that point.

The belts are kept in position by strips'ot' metal belts, for the purpose ot'supporting and shifting with facility the carriage, tig. 3, for unloading the ci'inveycr at; any desired point. The other tram-way is above the'upper section of the belts, for supporting and shifting the carriage, lig. 5, for brushing.

I also use the tram-ways for supporting the carrierpulleys necessary for supporting both the upper and- ,lower sections of the belts.

Fig. 3, B is a carriage, with llaugeil wheels to guide iton the tram-way, supporting the adjustable arms 0 O and reversing or unloading pulleys 1) D.

Atiached to the pivot end at the adjustable arms 0 0, either between the hearings or to the pivotoutside of the hearing are wheels 1) E, having their circumthreuces cut with a sercw-ilu-e:ul, one right; and the other left-hand.

Operating the screw-wheels, is the shall: F, for the purpose ot'clevatiug the pulleys-D 1), when in action, or depressing, when desired. Attached to-thc carriage B, on both sides, are the chutes G G, placed at such an angle as will permit the grain, when thrown upon them, to pass freely into the bins.

The upper edgeoi' the chutes extends up under the.

belts and projectsat the lower edge, beyond the carriage, to prevent the grain from falling on to the under section of the belts as they pass under the carriage, or on to the tranuway.

Owing tothe roughness of some grain, some of it adheres to the canvas and is scattered and mixed with other grain.

To obviate this, I combine, with the upper section of' the couveyer, a pair of rotating brushes, H H, suspended from underneath the carriage '15,.fig. 5, by suitable hangers.

The brushes are arranged at an angle coincident with the angle the canvas assumes when the unloading-apparatus is in action, and also arranged at an angle tending backward from the point of i intersection of their centre lines from thirty to forty-live degrees, and are in contact with the canvas only when the unloading apparatus is in action.

The rotating brushes H H are connected with each other, and with a. horizontal shalt, T, (attached to the carriage 1%,) by suitable gearing, and driven by the endiess eord J, from the grooved pulleys K K, attached to the shalts at each end of the eonvyer, that supports and moves the belts; thence,- with one-or more full turns around the flanged drum L, attached to the horizontal shall: I, thus afibrdiiig a continuous motion to the rotating brushes, and permitting a change of position to the carriage on the tram-way without altering the adjustment of the endless cord.

1 construct the bows M, fig. 6, with separate bases, N, and attach the bows to them in a position vertical to their plane, forming a hinge-joint, m n.

Iattaeh the bows M in the same vertical position by their bases N to the upper surtii'cesot' the belts by means of rivets, for the purpose of keeping the belts in a parallel position on their pulleys and preserving the under surfaces of the belts unobstructed tor the perl'ect action oi the unloadiug-a maratus, :uul also to freely permit the belts to chan e from a bevel to an angular position by the hinge-joints when the unloading-apparatus is in action.

As the weightof the grain in the bag would have a tendency to drag-the. belts from their pulleys, in consequenee ot' the unrestrained action of the hinge-joints ot the bows permitting the outside edges of the belts ;to tilt upward, I construct the bows M with a small projeetii'm, on, on each end, that bears firmly on the bases N and etl'ectually preserves the belts in their proper bevel position.

in operating my improved graiu-com'eyer, the carriage, lig. 3, is to be run along thetram-way to the desired location. The adjustable arms are then to be.

- elevated until the unloading pulleys-reverse the bag,

lifts "the belts up tiom off the carrier-pulleys until their outer edges are depressed by their weight to the. same angle the canvas assumes, which is readily permitted by the hinge-joints of the bows. The carriage,-

iig. 5, is then to be placed over the pulleys of the-nu:-

gravity, down the sides of the bag and belts on to the chutesand into the bins.

The rotating brushes being in motion, and in contact with the reversed bag, any grain that adheres to it is readily removed. Having tlms fully described my improvement in grainconveyers,

What'I claim therein as new, and desire to secure by Letters Patent, is-

1. The construction of the carriage B, ti". 3, with the adjustable arms 0- O and the unloading-pulleys D D, and their combination with the graiu-conveyer substantially in the manner herein described, and for the purpose set forth. v

2. The use of the tram-ways A A, fig. 1, and the device for unloading the conveyor at any point intermediate between the two en is, either by reversiugthe bag or twisting the belts or bag, so as to unload the conveyer on either or both sides.

3. The constrinztion ot' the bows M, with the. projection 1n, the bases N, and the hinge-joint m n, and their attachment. to the upper surfaces of the parallel belts of the gi'ain-com'eyer, substantially in the manner herein dcscribethaml for the purpose set forth.

4. The arrangement and combination of the rotating brushes H H with the grain-conveyer, substantially in the mannerherein described, and for the purpose set tbrth.

JOHN'GARDINER, [1,. s.] .Witnesses:

EDwlN L.'M()RGAN, Jens M. Hess. 

